GCLS_Page_Book/src/main.js

import Vue from 'vue'

import 'normalize.css/normalize.css' // A modern alternative to CSS resets
import '@/common/font/font.css'

import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
import locale from 'element-ui/lib/locale/lang/en' // lang i18n
import elementUtils from 'vue-element-utils'

import '@/styles/index.scss' // global css

import BookUI from 'book-ui';
import 'book-ui/dist/book-ui.css';
Vue.use(BookUI);

import App from './App'
import store from './store'
import router from './router'

import '@/permission' // permission control

// import '@/rem.js'
// 拖拽插件
import VueDND from 'awe-dnd'
Vue.use(VueDND)

// 连线
import jsPlumb from 'jsplumb'
Vue.prototype.$jsPlumb = jsPlumb.jsPlumb

import vcolorpicker from 'vcolorpicker'
Vue.use(vcolorpicker)

import i18n from '@/utils/i18n';

/**
 * If you don't want to use mock-server
 * you want to use MockJs for mock api
 * you can execute: mockXHR()
 *
 * Currently MockJs will be used in the production environment,
 * please remove it before going online ! ! !
 */
// set ElementUI lang to EN
// Vue.use(ElementUI, { locale })
// 如果想要中文版 element-ui，按如下方式声明
// element 下拉框下拉加载
Vue.directive('loadmore', {
  bind(el, binding) {
    // 获取element-ui定义好的scroll盒子
    const SELECTWRAP_DOM = el.querySelector('.el-select-dropdown .el-select-dropdown__wrap')
    SELECTWRAP_DOM.addEventListener('scroll', function () {
      const CONDITION = this.scrollHeight - this.scrollTop <= this.clientHeight
      if (CONDITION) {
        binding.value()
      }
    })
  }
})

Vue.use(ElementUI)

// v-select-scroll: Select 组件监听滚动，以便做懒加载
Vue.use(elementUtils)

Vue.config.productionTip = false

new Vue({
  el: '#app',
  router,
  store,
  i18n,
  render: h => h(App)
})